To make sure that Skype is no longer running, check that all Skype processes have been closed:
- Press CTRL+ALT+DELETE.
- Click Task Manager.
- Click Skype then click End Task.
- Click Yes to end the process.
- If you do not see Skype immediately, click More details. In the Processes tab, click on any entry beginning with the word "Skype" and click End Task.